Adding lights in flowering

By
Ed Rosenthal
on September 17, 2004

I’m growing under four 600-watt HPS lights. The plants have outgrown the lights. I’ve added another tray and have hung a 1,000-watt Sunmaster Warm Deluxe MH.
I’m three weeks into flowering. My friend told me that if I add the additional 1,000-watt light at this stage in growth, it would have a negative effect rather than a positive one. Is this true?

Anonymous,
Internet

No, it isn’t true. If the plants have outgrown the space and the garden is being spread out, the plants will use the extra light. More light will fuel photosynthesis and result in additional flower growth.

Readers with grow questions (or answers) should send them to Ed at: Ask Ed, PMB 147, 530 Divisadero St., San Francisco, California 94117, USA. You can also email Ed at [email protected], and send queries via his websites at www.ask-ed.net. All featured questions will be rewarded with a copy of Ed’s new book, Best of Ask Ed: Your Marijuana Questions Answered. Sorry, Ed cannot send personal replies to your questions.